Open Question: Which NV Goggle is better: ATN Viper or Night Optics USA D-112?

I am looking at a starter night vision goggle for camping and hiking use. Which is better:
http://www.nightvisionguys.com/directory/ATN_Viper_Night_Vision_Goggles-56.html
or
http://www.nightvisionguys.com/directory/Night_Optics_USA_D-112_Gen_1+_Mono-Goggle-332.html

Is the price difference justified?

Thanks.

Source:
http://answers.yahoo.com/question/index?qid=20110528091914AAWq7GT

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